... ;3) roughing end mills,ball nose end mills, corner rounding end mills, shell end mills, etc.4 ... HSS corp., we can produce high speed steel cutting tools,such as ground end mills,power hacksaw blades, ... steel cutting tools and precision carbide cutting tools.Our HSS cutting tools including end mills, roughing end mills,ball nose end mills, corner ... some special cutters. High speed steel/HSS cutting tools